diff --git a/CMakeCPackOptions.cmake.in b/CMakeCPackOptions.cmake.in
index 3ff018837..aba404f09 100644
--- a/CMakeCPackOptions.cmake.in
+++ b/CMakeCPackOptions.cmake.in
@@ -58,13 +58,11 @@ if("${CPACK_GENERATOR}" STREQUAL "WIX")
   endif()
 
   set(CPACK_PACKAGE_VERSION
-    "@CMake_VERSION_MAJOR@.@CMake_VERSION_MINOR@.@CMake_VERSION_PATCH@")
+    "@CMake_VERSION_MAJOR@.@CMake_VERSION_MINOR@")
   # WIX installers require at most a 4 component version number, where
   # each component is an integer between 0 and 65534 inclusive
-  set(tweak "@CMake_VERSION_TWEAK@")
-  if(tweak MATCHES "^[0-9]+$")
-    if(tweak GREATER 0 AND tweak LESS 65535)
-      set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION}.${tweak}")
-    endif()
+  set(patch "@CMake_VERSION_PATCH@")
+  if(patch MATCHES "^[0-9]+$" AND patch LESS 65535)
+    set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION}.${patch}")
   endif()
 endif()
diff --git a/Help/release/3.0.0.rst b/Help/release/3.0.0.rst
index 105d6519d..208e92ad5 100644
--- a/Help/release/3.0.0.rst
+++ b/Help/release/3.0.0.rst
@@ -390,6 +390,11 @@ Deprecated and Removed Features
 Other Changes
 =============
 
+* The version scheme was changed to use only two components for
+  the feature level instead of three.  The third component will
+  now be used for bug-fix releases or the date of development versions.
+  See the :variable:`CMAKE_VERSION` variable documentation for details.
+
 * The default install locations of CMake itself on Windows and
   OS X no longer contain the CMake version number.  This allows
   for easy replacement without re-generating local build trees
diff --git a/Help/variable/CMAKE_TWEAK_VERSION.rst b/Help/variable/CMAKE_TWEAK_VERSION.rst
index a2c8f3561..be2e0500f 100644
--- a/Help/variable/CMAKE_TWEAK_VERSION.rst
+++ b/Help/variable/CMAKE_TWEAK_VERSION.rst
@@ -1,5 +1,11 @@
 CMAKE_TWEAK_VERSION
 -------------------
 
-Fourth version number component of the :variable:`CMAKE_VERSION`
-variable.
+Defined to ``0`` for compatibility with code written for older
+CMake versions that may have defined higher values.
+
+.. note::
+
+  In CMake versions 2.8.2 through 2.8.12, this variable holds
+  the fourth version number component of the
+  :variable:`CMAKE_VERSION` variable.
diff --git a/Help/variable/CMAKE_VERSION.rst b/Help/variable/CMAKE_VERSION.rst
index 6184f0802..bbb1d91be 100644
--- a/Help/variable/CMAKE_VERSION.rst
+++ b/Help/variable/CMAKE_VERSION.rst
@@ -1,24 +1,23 @@
 CMAKE_VERSION
 -------------
 
-The CMake version string as up to four non-negative integer components
+The CMake version string as three non-negative integer components
 separated by ``.`` and possibly followed by ``-`` and other information.
-The first three components represent the feature level and the fourth
+The first two components represent the feature level and the third
 component represents either a bug-fix level or development date.
 
 Release versions and release candidate versions of CMake use the format::
 
-  <major>.<minor>.<patch>[.<tweak>][-rc<n>]
+  <major>.<minor>.<patch>[-rc<n>]
 
-where the ``<tweak>`` component is less than ``20000000``.  Development
+where the ``<patch>`` component is less than ``20000000``.  Development
 versions of CMake use the format::
 
-  <major>.<minor>.<patch>.<date>[-<id>]
+  <major>.<minor>.<date>[-<id>]
 
 where the ``<date>`` component is of format ``CCYYMMDD`` and ``<id>``
 may contain arbitrary text.  This represents development as of a
-particular date following the ``<major>.<minor>.<patch>`` feature
-release.
+particular date following the ``<major>.<minor>`` feature release.
 
 Individual component values are also available in variables:
 
@@ -35,6 +34,12 @@ strings as floating-point numbers.
 
 .. note::
 
+  CMake versions 2.8.2 through 2.8.12 used three components for the
+  feature level.  Release versions represented the bug-fix level in a
+  fourth component, i.e. ``<major>.<minor>.<patch>[.<tweak>][-rc<n>]``.
+  Development versions represented the development date in the fourth
+  component, i.e. ``<major>.<minor>.<patch>.<date>[-<id>]``.
+
   CMake versions prior to 2.8.2 used three components for the
   feature level and had no bug-fix component.  Release versions
   used an even-valued second component, i.e.
diff --git a/Source/CMakeInstallDestinations.cmake b/Source/CMakeInstallDestinations.cmake
index 3e93d41e6..99c86ca77 100644
--- a/Source/CMakeInstallDestinations.cmake
+++ b/Source/CMakeInstallDestinations.cmake
@@ -1,15 +1,15 @@
 # Keep formatting here consistent with bootstrap script expectations.
 if(BEOS)
-  set(CMAKE_DATA_DIR_DEFAULT "share/cmake-${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}.${CMake_VERSION_PATCH}") # HAIKU
+  set(CMAKE_DATA_DIR_DEFAULT "share/cmake-${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}") # HAIKU
   set(CMAKE_MAN_DIR_DEFAULT "documentation/man") # HAIKU
-  set(CMAKE_DOC_DIR_DEFAULT "documentation/doc/cmake-${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}.${CMake_VERSION_PATCH}") # HAIKU
+  set(CMAKE_DOC_DIR_DEFAULT "documentation/doc/cmake-${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}") # HAIKU
 elseif(CYGWIN)
   set(CMAKE_DATA_DIR_DEFAULT "share/cmake-${CMake_VERSION}") # CYGWIN
   set(CMAKE_DOC_DIR_DEFAULT "share/doc/cmake-${CMake_VERSION}") # CYGWIN
   set(CMAKE_MAN_DIR_DEFAULT "share/man") # CYGWIN
 else()
-  set(CMAKE_DATA_DIR_DEFAULT "share/cmake-${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}.${CMake_VERSION_PATCH}") # OTHER
-  set(CMAKE_DOC_DIR_DEFAULT "doc/cmake-${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}.${CMake_VERSION_PATCH}") # OTHER
+  set(CMAKE_DATA_DIR_DEFAULT "share/cmake-${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}") # OTHER
+  set(CMAKE_DOC_DIR_DEFAULT "doc/cmake-${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}") # OTHER
   set(CMAKE_MAN_DIR_DEFAULT "man") # OTHER
 endif()
 
diff --git a/Source/CMakeVersion.bash b/Source/CMakeVersion.bash
index 4794e608d..853b0ca28 100755
--- a/Source/CMakeVersion.bash
+++ b/Source/CMakeVersion.bash
@@ -3,5 +3,5 @@
 if test "x$1" = "x-f"; then shift ; n='*' ; else n='\{8\}' ; fi
 if test "$#" -gt 0; then echo 1>&2 "usage: CMakeVersion.bash [-f]"; exit 1; fi
 sed -i -e '
-s/\(^set(CMake_VERSION_TWEAK\) [0-9]'"$n"'\(.*\)/\1 '"$(date +%Y%m%d)"'\2/
+s/\(^set(CMake_VERSION_PATCH\) [0-9]'"$n"'\(.*\)/\1 '"$(date +%Y%m%d)"'\2/
 ' "${BASH_SOURCE%/*}/CMakeVersion.cmake"
diff --git a/Source/CMakeVersion.cmake b/Source/CMakeVersion.cmake
index 547aca84c..5ce43f56c 100644
--- a/Source/CMakeVersion.cmake
+++ b/Source/CMakeVersion.cmake
@@ -2,5 +2,4 @@
 set(CMake_VERSION_MAJOR 3)
 set(CMake_VERSION_MINOR 0)
 set(CMake_VERSION_PATCH 0)
-set(CMake_VERSION_TWEAK 0)
 set(CMake_VERSION_RC 1)
diff --git a/Source/CMakeVersionCompute.cmake b/Source/CMakeVersionCompute.cmake
index a1663342e..496d6cf1a 100644
--- a/Source/CMakeVersionCompute.cmake
+++ b/Source/CMakeVersionCompute.cmake
@@ -1,8 +1,8 @@
 # Load version number components.
 include(${CMake_SOURCE_DIR}/Source/CMakeVersion.cmake)
 
-# Releases define a small tweak level.
-if("${CMake_VERSION_TWEAK}" VERSION_LESS 20000000)
+# Releases define a small patch level.
+if("${CMake_VERSION_PATCH}" VERSION_LESS 20000000)
   set(CMake_VERSION_IS_RELEASE 1)
   set(CMake_VERSION_SOURCE "")
 else()
@@ -12,9 +12,6 @@ endif()
 
 # Compute the full version string.
 set(CMake_VERSION ${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}.${CMake_VERSION_PATCH})
-if(${CMake_VERSION_TWEAK} GREATER 0)
-  set(CMake_VERSION ${CMake_VERSION}.${CMake_VERSION_TWEAK})
-endif()
 if(CMake_VERSION_RC)
   set(CMake_VERSION ${CMake_VERSION}-rc${CMake_VERSION_RC})
 endif()
diff --git a/Source/cmExportFileGenerator.h b/Source/cmExportFileGenerator.h
index 8be4bbf8b..57ab37899 100644
--- a/Source/cmExportFileGenerator.h
+++ b/Source/cmExportFileGenerator.h
@@ -21,14 +21,13 @@
 #define STRINGIFY_HELPER(X) #X
 #define STRINGIFY(X) STRINGIFY_HELPER(X)
 
-#define DEVEL_CMAKE_VERSION(maj, min, patch) \
-  (CMake_VERSION_ENCODE(maj, min, patch) > \
-   CMake_VERSION_ENCODE(CMake_VERSION_MAJOR, CMake_VERSION_MINOR, \
-                        CMake_VERSION_PATCH) \
-  ) ? \
+#define DEVEL_CMAKE_VERSION(major, minor) ( \
+  CMake_VERSION_ENCODE(major, minor, 0) > \
+  CMake_VERSION_ENCODE(CMake_VERSION_MAJOR, CMake_VERSION_MINOR, 0) ?  \
     STRINGIFY(CMake_VERSION_MAJOR) "." STRINGIFY(CMake_VERSION_MINOR) "." \
-    STRINGIFY(CMake_VERSION_PATCH) "." STRINGIFY(CMake_VERSION_TWEAK) \
-  : #maj "." #min "." #patch
+    STRINGIFY(CMake_VERSION_PATCH) \
+  : #major "." #minor ".0" \
+  )
 
 class cmTargetExport;
 
diff --git a/Source/cmVersion.cxx b/Source/cmVersion.cxx
index 047d24d74..9cb0cd6a7 100644
--- a/Source/cmVersion.cxx
+++ b/Source/cmVersion.cxx
@@ -16,7 +16,7 @@
 unsigned int cmVersion::GetMajorVersion() { return CMake_VERSION_MAJOR; }
 unsigned int cmVersion::GetMinorVersion() { return CMake_VERSION_MINOR; }
 unsigned int cmVersion::GetPatchVersion() { return CMake_VERSION_PATCH; }
-unsigned int cmVersion::GetTweakVersion() { return CMake_VERSION_TWEAK; }
+unsigned int cmVersion::GetTweakVersion() { return 0; }
 
 const char* cmVersion::GetCMakeVersion()
 {
diff --git a/Source/cmVersionConfig.h.in b/Source/cmVersionConfig.h.in
index 76bc8fe94..16aeabe9e 100644
--- a/Source/cmVersionConfig.h.in
+++ b/Source/cmVersionConfig.h.in
@@ -12,5 +12,4 @@
 #define CMake_VERSION_MAJOR @CMake_VERSION_MAJOR@
 #define CMake_VERSION_MINOR @CMake_VERSION_MINOR@
 #define CMake_VERSION_PATCH @CMake_VERSION_PATCH@
-#define CMake_VERSION_TWEAK @CMake_VERSION_TWEAK@
 #define CMake_VERSION "@CMake_VERSION@"
diff --git a/Source/cmVersionMacros.h b/Source/cmVersionMacros.h
index 67f58ca41..cf7f678a7 100644
--- a/Source/cmVersionMacros.h
+++ b/Source/cmVersionMacros.h
@@ -14,8 +14,8 @@
 
 #include "cmVersionConfig.h"
 
-#define CMake_VERSION_TWEAK_IS_RELEASE(tweak) ((tweak) < 20000000)
-#if CMake_VERSION_TWEAK_IS_RELEASE(CMake_VERSION_TWEAK)
+#define CMake_VERSION_PATCH_IS_RELEASE(patch) ((patch) < 20000000)
+#if CMake_VERSION_PATCH_IS_RELEASE(CMake_VERSION_PATCH)
 # define CMake_VERSION_IS_RELEASE 1
 #endif
 
diff --git a/bootstrap b/bootstrap
index 9154afb82..69dcbce84 100755
--- a/bootstrap
+++ b/bootstrap
@@ -53,10 +53,6 @@ cmake_version_major="`cmake_version_component MAJOR`"
 cmake_version_minor="`cmake_version_component MINOR`"
 cmake_version_patch="`cmake_version_component PATCH`"
 cmake_version="${cmake_version_major}.${cmake_version_minor}.${cmake_version_patch}"
-cmake_version_tweak="`cmake_version_component TWEAK`"
-if [ "$cmake_version_tweak" != "0" ]; then
-  cmake_version="${cmake_version}.${cmake_version_tweak}"
-fi
 cmake_version_rc="`cmake_version_component RC`"
 if [ "$cmake_version_rc" != "" ]; then
   cmake_version="${cmake_version}-rc${cmake_version_rc}"
@@ -1464,7 +1460,6 @@ fi
 cmake_report cmVersionConfig.h${_tmp} "#define CMake_VERSION_MAJOR ${cmake_version_major}"
 cmake_report cmVersionConfig.h${_tmp} "#define CMake_VERSION_MINOR ${cmake_version_minor}"
 cmake_report cmVersionConfig.h${_tmp} "#define CMake_VERSION_PATCH ${cmake_version_patch}"
-cmake_report cmVersionConfig.h${_tmp} "#define CMake_VERSION_TWEAK ${cmake_version_tweak}"
 cmake_report cmVersionConfig.h${_tmp} "#define CMake_VERSION \"${cmake_version}\""
 cmake_report cmConfigure.h${_tmp} "#define CMAKE_ROOT_DIR \"${cmake_root_dir}\""
 cmake_report cmConfigure.h${_tmp} "#define CMAKE_DATA_DIR \"/bootstrap-not-insalled\""